Winter doesn't stand a chance.

Based on the T-Flex LS-100 Shoes, Louis Garneau's 0-Degrees LS-100 Shoes let cold weather commuters, and fat bike riders alike, cut through the chill. This means that you'll enjoy the same Carbon T-Flex Power Blade and BOA L4 single rail as the LS-100, only in a package that's warmed by insulated 3mm neoprene.

The T-Flex Power Blade gives the LS-100 the stiff benefits of carbon fiber and the controlled flex of a nylon matrix. In terms of flexibility, you've surely felt overly stiff outsoles at some point in your riding. Well, the nylon matrix amounts to a calculated percentage of "give" under load. Essentially, this is minute enough that you won't notice it on climbs or hard drives, however, after a few hours on the trail, your feet certainly will.

The T-Flex also features a dual-density polyurethane tread that's been shaped to mimic crampons — those pickax like devices you strap onto your feet before scaling a crevasse. Ultimately, this combination of shape and materials creates a tread that's durable, and just as importantly, effectively sheds snow and mud.

For even distribution of pressure, the venerable BOA L4 single rail controls the retention at the top of the tongue. And if you hadn't noticed, BOA is highly selective as to who it chooses to license to. And that this technology is featured in a mountain shoe is, well, nearly unheard of. Essentially, the L4 buckle provides the most even, forgiving, simple-to-use, and precise retention on the market. With a simple turn of the dial, your retention is secured and unwavering.

For protection from the elements, Garneau made these shoes with a water-resistant exterior. However, they're lining features a waterproof membrane and fully-sealed seams. And in terms of warmth, Garneau also included a 4mm foam insulation along the lining of the shoes.

The Louis Garneau 0-Degrees LS-100 Shoes are available in the color Black and in even sizes from 38.0 to 48.0.

Here's what others have to say...

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Warm at 27F

Familiarity:
I've put it through the wringer

Used it 3 times with a thick smartwool and a thin sock as a outer layer, one of the rides was in snow fall feet was dry end of one hour ride . Size is another issue, I went up 3 sizes, I use Lake regular mtb shoes 43 the LG is 46

Comment on hay105678077's review:

Warm but zippers break

Familiarity:
I've put it through the wringer

My feet always get cold when it drops below 25, but with these shoes I have ridden in -15. They are warm and made year-round winter commuting in VT possible for me. Unfortunately the design is such that the neoprene liner jams in the zipper and rips. This didn't seem to affect how warm the shoes are, but after a month of use both zippers broke and I had to rig them with paper clips to zip them up. With some design improvements and sturdier zippers these shoes would be great.

Comment on jpmp779555's review:

Warm but faulty zippers

Familiarity:
I've used it once or twice and have initial impressions

Fit:
Runs small

I really wanted to like these shoes and there are good things about them. They are warm and they are very stiff in a good way for biking and the tread is aggressive and grips the trail on hike-a-bike sections. Having said that, I wore these twice and both zippers are broken. On on shoe, just the pull string ripped off, but on the other the zipper jammed and damaged itself...and the pull string then ripped off when I tried to unjam it. I assure you I did not abuse the zipper in any way and there was nothing in the mechanism like dirt or ice. It was brand new and clean, it just broke. For the price and intended use of these shoes, I think a quality zipper is a must, and since it obviously is not, I wonder about the longevity of the rest of the shoe. One last good comment, the Specialized defroster shoe has a similar design but the boa dial isn't covered by the overshoe flap. I much prefer the design of the LG shoes. Again, I wanted to like these, but they broke almost immediately, and I am returning them. Sizing runs very small. I wear a 10 and a half in regular shoes and I ordered the size 45 (11.5) and they were snug. If I ordered them again I'd go up yet another size so I could fit bigger socks.

Comment on mpep1123986's review:

Garneau 0 degree mountain bike shoes

Familiarity:
I've used it once or twice and have initial impressions

Fit:
True to size

I just got a pair of these for sub 30 degree riding. Yoday was 31 degrees and my feet were toasty warm the whole time. The dial-secure tongue and zip-up windproof protector work great to cinch the shoe evenly on my feet. The bottom cleats are big and excellent for grip when hiking. Absolute top quality construction from Garneau. So far I'm very satisfied. They beat the heck out of summer shoes with covers.

Comment on marp866536's review:

These run small

I had to return these shoes because they run small. I wear a size 11.5 when I use my specialized riding shoes. The 11.5/45 for these Garneaus is very tight. I recommend that if you order these shoes, you order a half size larger.